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Finding the Fourth Proportional to 346,338.65, 477,942.77 and 193,379.45

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Solution

The fourth proportional to 346,338.65, 477,942.77 and 193,379.45 is: 266,861.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,338.65 : 477,942.77 = 193,379.45 : x
  2. Step 2: Convert to fraction form
    346,338.65/477,942.77 = 193,379.45/x
  3. Step 3: Cross multiply
    346,338.65x = 477,942.77 × 193,379.45
  4. Step 4: Simplify right side
    346,338.65x = 92,424,308,087.81
  5. Step 5: Solve for x
    x = 92,424,308,087.81/346,338.65
  6. Step 6: Final answer
    x = 266,861.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.